Disorder-induced stabilization of the pseudogap in strongly correlated systems.

  title={Disorder-induced stabilization of the pseudogap in strongly correlated systems.},
  author={Simone Chiesa and Prabuddha B. Chakraborty and Warren E. Pickett and Richard T. Scalettar},
  journal={Physical review letters},
  volume={101 8},
The interplay of strong interaction and strong disorder, as contained in the Anderson-Hubbard model, is addressed using two nonperturbative numerical methods: the Lanczos algorithm in the grand canonical ensemble at zero temperature and quantum Monte Carlo simulations. We find distinctive evidence for a zero-energy anomaly which is robust upon variation of doping, disorder, and interaction strength. Its similarities to, and differences from, pseudogap formation in other contexts, including… 

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